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| Titel |
The development of Atlantic Water heat content on its way through the Arctic Ocean |
| VerfasserIn |
C. Koeberle, R. Gerdes, F. Hacker |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250027864
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| Zusammenfassung |
| In the light of a warming Arctic Ocean there has been a lot of speculation on the role of the
heat that is imported into the Arctic Ocean with the Atlantic Water. If this heat would be
available, e. g. for ice melting, that could account for a lot of the recently observed and for
the future expected ice loss.
We use a coupled ocean-sea ice model and the NCEP/NCAR atmospheric forcing data from 1948
until 2008 to trace inflowing Atlantic Water all the way around the Arctic from sections at
65N and 79N respectively. Marking a water mass of interest allows to see how much of the
imported heat is lost and where to.
An exactly comparable tracing is unfortunately not possible for hindcast simulations of the
IPCC 4th assessment due to unavailable output. Nevertheless we will show integral calculations
of heat loss over the same sections for some good hindcast models and roughly approximate the
results of our own model by looking e. g. at the areas of highest heat loss. |
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